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Extra condition in join predicate of explicit join produces wrong MAL code #4070

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monetdb-team opened this issue Nov 30, 2020 · 0 comments
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@monetdb-team monetdb-team commented Nov 30, 2020

Date: 2016-09-21 19:45:39 +0200
From: muesli4
To: SQL devs <>
Version: 11.23.7 (Jun2016-SP1)
CC: @njnes

Last updated: 2016-10-13 10:04:16 +0200

Comment 22380

Date: 2016-09-21 19:45:39 +0200
From: muesli4

User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:48.0) Gecko/20100101 Firefox/48.0
Build Identifier:

The following SQL snippet goes through the SQL code generator and fails within the MAL-Backend:

SELECT 1 FROM orders LEFT OUTER JOIN customer ON (1 = 1 AND o_custkey = c_custkey);

Exact error message:
TypeException:user.s2_1[14]:'algebra.projection' undefined in: algebra.projection(X_5:bit,X_21:bat[:oid]);

Reproducible: Always

Compiled from Mercurial version (but also exists in the last release version): 1db157d67d26

MonetDB 5 server v11.24.0 (64-bit, 128-bit integers)
This is an unreleased version
Copyright (c) 1993-July 2008 CWI
Copyright (c) August 2008-2016 MonetDB B.V., all rights reserved
Visit http://www.monetdb.org/ for further information
Found 4.8GiB available memory, 2 available cpu cores
Libraries:
libpcre: 8.39 2016-06-14 (compiled with 8.39)
openssl: OpenSSL 1.0.2h 3 May 2016 (compiled with OpenSSL 1.0.2h 3 May 2016)
libxml2: 2.9.4 (compiled with 2.9.4)
Compiled by: ...@phi (x86_64-unknown-linux-gnu)
Compilation: gcc -O3 -fomit-frame-pointer -pipe -Werror -Wall -Wextra -W -Werror-implicit-function-declaration -Wpointer-arith -Wdeclaration-after-statement -Wundef -Wformat=2 -Wno-format-nonliteral -Winit-self -Winvalid-pch -Wmissing-declarations -Wmissing-format-attribute -Wmissing-prototypes -Wold-style-definition -Wpacked -Wunknown-pragmas -Wvariadic-macros -fstack-protector-all -Wstack-protector -Wpacked-bitfield-compat -Wsync-nand -Wjump-misses-init -Wmissing-include-dirs -Wlogical-op -Wunreachable-code -D_FORTIFY_SOURCE=2
Linking : /usr/bin/ld -m elf_x86_64

Comment 22381

Date: 2016-09-21 19:46:19 +0200
From: muesli4

Created attachment 403
The SQL snippet.

Attached file: bug.sql (application/sql, 93 bytes)
Description: The SQL snippet.

Comment 22396

Date: 2016-09-29 18:29:30 +0200
From: @njnes

fixed problem with constant compare expressions in the join expression list (normaly they get pushed down, but not with outer joins)

Comment 22397

Date: 2016-09-29 19:57:00 +0200
From: MonetDB Mercurial Repository <>

Changeset 9ad21eacf724 made by Niels Nes niels@cwi.nl in the MonetDB repo, refers to this bug.

For complete details, see http//devmonetdborg/hg/MonetDB?cmd=changeset;node=9ad21eacf724

Changeset description:

fixed bug #4070, ie handle constant expressions in a outer join

Comment 24495

Date: 2016-10-13 10:04:16 +0200
From: @sjoerdmullender

Jun2016-SP2 has been released.

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